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Post by jnelson90 on Aug 9, 2019 14:38:44 GMT -5
I have a 2006 Regal 3860 and my thru hull sea-cock for my AC raw water pump is missing the screw that the bonding wire connects to. All of my other thru hull hardware is bonded together. I have been unable to find a replacement and not sure if it is brass, bronze, etc. and not sure about the thread size and screw length. Any insight would be greatly appreciated.
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Post by Mypleasure on Aug 9, 2019 15:27:40 GMT -5
I can take a picture of mine tomorrow if you would like......Rick
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Post by gofast24 on Aug 12, 2019 10:44:08 GMT -5
Maybe take a hand full of SAE thread screws and try each one in the bonding threaded hole. If you find one that fits perfectly take it to a ACE hardware store and get a brass equivalent? Or, get a SS small hose clamp and clamp the wire to the body of the thru hull valve, should provide the same electrical grounding as a screw?
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Post by jnelson90 on Aug 19, 2019 11:03:10 GMT -5
I have tried many different screws but none matches the diameter/thread pitch. I like the stainless clamp idea - any concerns with stainless being a different metal on the bronze thru-hull? Thanks for the replies.
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Post by gofast24 on Aug 20, 2019 10:26:36 GMT -5
No, SS clamp should not be a gavalinic problem, main thing is that the copper bonding wire has a clean bond to the sea cock brass body. Double or triple over the end of the bonding wire (if you have enough length of the bonding wire to strip the insulation off) ) in a serpentine fashion, then clamp it down on the sea cock body or the brass fitting used to send the sea water to the pump. You could also use some non corrosive electrical compound on the wire and clamp to the sea cock to be sure you have a good connection and no further corrosion. By the way, are you on salt water or fresh water? Would be nice if that was in your salutation.
Thanks
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Post by jnelson90 on Aug 20, 2019 10:50:25 GMT -5
Thanks Go Fast; our boat is docked in mostly fresh water but we are somewhat frequently in brackish and occasionally in salt water. I had read several items regarding bonding of thru hulls and if that is even necessary. I figure; since my boat came with all of them bonded then that is the direction I should keep.
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Post by gofast24 on Aug 21, 2019 10:16:57 GMT -5
Agree, if the vessel came with bonding cables it was designed for both salt and freshwater so suggest you just "re bond" the cable to that sea cock.
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